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Derivatives - Fair Value of Derivative Contracts (Detail) - USD ($)
$ in Thousands
Mar. 31, 2025
Dec. 31, 2024
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Assets $ 1,293 $ 5,384
Liabilities 657 4,430
Notional Amounts 33,856,217 10,114,544
FX swaps    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Assets 1,141 4,810
Liabilities 454 3,679
Notional Amounts 686,908 635,790
Forwards    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Assets 96 409
Liabilities 160 751
Notional Amounts 67,710 185,821
Futures    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Assets 0 165
Liabilities 43 0
Notional Amounts 9,181,705 8,758,848
Interest rate swaps    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Assets 56 0
Liabilities 0 0
Notional Amounts $ 23,919,894 $ 534,085